1991 Camaro RS wiring help ! Options

[Hempel79]

I bought a non running 91 RS 5.0 tbi with a locked up L03 ..... replaced the long block and it runs fine ..... but the alternator and starter wiring have me stumped!! The alternator puts out .03 v on the large post when running, if you jump the red wire to the post it will engage the starter. I looked at the starter wiring assuming I had put a wire where it didn’t belong , but can’t find anything out of the ordinary.. there is a purple wire and an orange wire on the solenoid and along with the large battery cable there is three wires on that post ....... i removed the orange wire from the solenoid and put it on the distribution block next to the battery assuming that’s where it went , and when I did that along with jumping the red wire to the alternator post nothing happened, this is where it just gets crazy!! While in that configuration I pulled the positive battery cable off with the engine running and the alternator came to life putting out 15v . Any help would be appreciated and any info as to exactly what wires go to the starter on both posts would help a ton

[BigBadLou]

Welcome to ATGO.
Which part of town are you hailing from?
If you're not far, I could come look at it in person.